package org.geeks.gsrest.base.config.mvc;

import org.springframework.core.MethodParameter;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * 对响应对象进行包装
 * 
 * @author Geek-S
 *
 */
@RestControllerAdvice(annotations = RestController.class)
public class ResponseWrapper implements ResponseBodyAdvice<Object> {

	@Override
	public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
		return true;
	}

	@Override
	public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType,
			Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request,
			ServerHttpResponse response) {
		selectedContentType = MediaType.APPLICATION_JSON_UTF8;

		if (body instanceof ResponseVo || body instanceof String) {
			return body;
		}

		return ResponseVo.builder().code(10000).status(HttpStatus.OK.value()).data(body).build();
	}

}
